- change 'refreshfreq' from int to double.

A double is already used in CalcSmoothRatio. Further to this, displays that use TV standard frequencies do not use perfect 60Hz frequencies, but frequencies such as 59.94Hz, 23.976Hz (precisely, 24*(1000/1001) = 23.9760239760239760...) etc.

Reference: 'https://www.ghacks.net/2010/04/28/59-hertz-refresh-rate/', 'http://www.paradiso-design.net/videostandards_en.html'.

# Conflicts:
#	source/build/include/baselayer.h
#	source/platform/posix/cocoa/i_main.mm

source/build/include/baselayer.h

@@ -24,7 +24,8 @@ EXTERN_CVAR(Bool, r_usenewaspect)
 extern int32_t newaspect_enable;
 extern int32_t r_fpgrouscan;
 extern int32_t setaspect_new_use_dimen;
-extern int32_t xres, yres, bpp, refreshfreq;
+extern int32_t xres, yres, bpp;
+extern double refreshfreq;
 
 int32_t videoCheckMode(int32_t *x, int32_t *y, int32_t c, int32_t fs, int32_t forced);
 int32_t videoSetMode(int32_t x, int32_t y, int32_t c, int32_t fs);

source/platform/posix/cocoa/i_main.mm

@@ -139,6 +139,8 @@ void I_DetectOS()
 
 FArgs* Args; // command line arguments
 
+double refreshfreq;
+bool batchrun;
 
 namespace
 {

source/platform/posix/sdl/sdlglvideo.cpp

@@ -111,7 +111,7 @@ CCMD(vid_list_sdl_render_drivers)
 	}
 }
 
-int refreshfreq;
+double refreshfreq;
 
 // PRIVATE DATA DEFINITIONS ------------------------------------------------
 

source/platform/win32/i_input.cpp

@@ -136,7 +136,7 @@ extern bool AppActive;
 
 int SessionState = 0;
 int BlockMouseMove; 
-int refreshfreq;
+double refreshfreq;
 
 static bool EventHandlerResultForNativeMouse;